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1/4" NMTB 40 End Mill Tool Holder

In stock

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More Information
Mfg SKU #202-6543
Tool Holder CategoryEnd Mill Holder
BrandShars Tool
shank sizeNMTB 40
Bore Diameter1/4
projection length2.31
max rpm balanced to3000
TIR (inch)0.0004
drawbar thread size5/8x11UNC
Stop Screw Thread Size1/4-28 UNF
Nose Diameter0.88
Dual Contact Tool HolderNo
Bore Depth0.94
End Mill Type ComptibilitySingle End and Double End


  • Precise flange thickness and reduce nose diameter allow this tool holder to be used on NMTB machine with Quick Change spindle

  • All critical surfaces precision ground
  • Made from alloy steel hardened to 55 - 56rc
  • Runout is less than .00004" at collet face and each holder comes with a manufacture's runout inspection report
  • Each holder undergoes a sub-zero cryogenic treatment which prevents deformation over time